Solar Panels in Perth 2026, Installation Costs, STC Rebates, Synergy Feed-in Buyback Scheme, and How to Find a CEC Accredited Installer

Solar Panels in Perth 2026

Perth has one of the highest solar panel adoption rates in the world, consistently sunny weather, STC Zone 2 (high rebate), and significant electricity bill savings driven by Synergy tariff structures make rooftop solar extremely economical in Perth. The average Perth 6.6kW system generates approximately 27-31kWh per day. wa.gov.au

How Much Do Solar Panels Cost in Perth 2026?

• 6.6kW solar system (after federal STC rebate, supply + install), typically $5,200-$7,800
• 10kW solar system (after STC rebate), typically $7,800-$12,500
• 13.2kW solar system (after STC rebate), typically $9,800-$15,500
• Battery storage, Tesla Powerwall 2 (supply + install), typically $12,500-$16,000
• Battery storage, BYD HVM 8kWh (supply + install), typically $8,200-$11,500

Synergy Distributed Energy Buyback Scheme (WA) 2026

WA operates its own electricity market (not NEM) and Synergy manages the state's feed-in arrangement. The Synergy Distributed Energy Buyback Scheme (DEBS) pays 2.25 cents per kWh for excess exported solar after the first 50% of daily generation is consumed (with higher rates for transitional customers). WA's below-market feed-in rate makes self-consumption and battery storage economics more compelling than in eastern states. synergy.net.au

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